Granit Xhaka's impact on standards

Sunderland defender Dan Ballard speaks to BBC Sport's Betty Glover about the Wear-Tyne derby win, promotion and the impact Granit Xhaka has had on the Black Cats. They discuss how everyone has adapted so well to the Premier League and his teams aim for the rest of the season. They also get into his ability to step up in big games and how he's improved himself since last season.